Here's a blurb on the 'lyrics' of the song, from a Vangelis lyrics website: "The lyrics are spoken in Arabic with an Egyptian accent (Demis was raised in Egypt as a child). Most of the words however are gibberish and sometimes almost resemble other Arabic words but they are altered and arranged differently so they sound meaningless. Listening to the lyrics as whole does not build into a story and there is little sense trying to make sense of it. At the end of it there is a little passage where it does convey two meaningful sentences : 'Tell me my dear? Tell me my mother?' (translated)"
Vangelis - Tales Of The Future